#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;

vector<int> div(vector<int>& A,int b,int &r)
{
	vector<int> C;
	r = 0;
	for(int i = A.size()-1;i>=0;i--)
	{
		r = r * 10  + A[i];
		C.push_back(r / b);
		r %= b;
	}
	reverse(C.begin(),C.end());
	while(C.size()>1 && C.back()==0) C.pop_back();
	
	return C;
}


int main()
{
	string a;
	int b;
	vector<int> A;
	cin >> a>> b;
	for(int i = a.size()-1;i>=0;i--) A.push_back(a[i] - '0');
	
	int r = 0;
	auto C = div(A,b,r);
	
	for(int i = C.size()- 1 ; i >= 0 ;i ++ ) cout << C[i];
	cout << r << endl; 

	return 0;
 } 
